Chapter 5: Loops

an image of a fractal — **Figure 5.1** credit: modification of work "Quantum Computing", by Kevin Dooley/Flickr, CC BY 2.0

A loop is a code block that runs a set of statements while a given condition is true. A loop is often used for performing a repeating task. Ex: The software on a phone repeatedly checks to see if the phone is idle. Once the time set by a user is reached, the phone is locked. Loops can also be used for iterating over lists like student names in a roster, and printing the names one at a time.

In this chapter, two types of loops, for loop and while loop, are introduced. This chapter also introduces break and continue statements for controlling a loop's execution.